The control unit four of a constant pressure burks

The booster water supply system combines AC variable-frequency speed regulation technology with automatic control technology to form an advanced and reliable automatic pump unit. This system can be widely used in a variety of pressurization and circulation systems, such as domestic water pressurization, solar / air-source hot water pressurization, boiler feed water systems and industrial constant-pressure circulation, and can keep the water supply pressure stable at the required set value.

● Control accuracy up to 1% bar
● Innovative energy-saving shutdown algorithm for more reliable control
● Shortcut key operation, everything easy to master
● Spare pump interface, making system upgrades possible
● Remote monitoring, in line with the automated building design concept
● Strict system life testing to ensure the pump unit is reliable and stable
● When there is no water at the inlet, the pump is automatically protected against damage
● Complete dry-running protection and fault handling

This is a one-drive-four-pump system: one variable-frequency control system controls up to four pump units. The system mainly consists of the pump units, variable-frequency drives (VFD control cabinet), a pressure sensor, a pressure tank and pipeline valves, and the number of pumps in operation can be combined according to the water demand. The pumps back each other up, so if one pump is out of service for a fault or maintenance, the others can continue supplying water and keep a large system running without interruption.

During operation, a pressure sensor on the outlet network continuously detects the network pressure and feeds the signal back to the variable-frequency controller. The controller compares the actual pressure with the set pressure and, through PID regulation, adjusts the output frequency of the drive to change the pump motor speed: when water consumption increases, the motor speeds up and the pump boosts the supply; when consumption decreases, the motor slows down accordingly. At low demand or during small-flow periods, the system can enter a sleep (standby) state; when the network pressure drops to the wake-up condition, the system restarts automatically. Through this closed-loop regulation, the supply pressure is kept stable around the set value, while unnecessary pump running time and energy consumption are reduced. The pumps are dispatched by the control system according to water consumption: more pumps are brought into operation automatically as demand rises and are taken off as demand falls, and the running sequence of the pumps is rotated so that the running time and wear of each pump stay balanced.

Constant-pressure supply: closed-loop pressure control keeps the supply pressure stable at the required set value, with small pressure fluctuation as consumption changes.
Energy saving: the drive adjusts the pump speed automatically according to actual water consumption, and works with an energy-saving shutdown (sleep) algorithm, so the system uses only the energy the demand requires.
Complete protection: automatic protection against inlet water shortage, dry-running protection and fault handling protect the pump from damage in abnormal conditions.
Easy operation: shortcut key operation makes parameter setting and running status clear at a glance.
Expandable and monitorable: a spare pump interface is reserved for convenient system upgrades, and remote monitoring is supported for use with automated building systems.

Suitable for centralized water supply with large demand and wide demand fluctuation, such as domestic and process water supply in large residential communities, high-rise buildings, hotels, hospitals, schools and factories, as well as large hot water pressurization, boiler feed water and industrial constant-pressure circulation systems.